(scroll down for English)

Vamos pegar aleatóriamente num motor de passo e tentar descobrir que tipo de motor é, desenhar um diagrama simples do mesmo.
Depois vamos pegar no ferro de soldar (não há que ter meeeeeedo :)) e montar um circuito que permite controlar esse motor a partir de um Arduino ou qualquer outra placa baseada num microcontrolador.
Todo o material é fornecido e fica para os participantes, sendo apenas necessário trazer ferro de soldar e multimetro (ou esperar que alguma alma caridosa vos empreste).

O número de participantes é limitado pelo que, se disserem que vêm, contamos MEEESMO convosco ;)

Para inscrições e pedidos de informação: workshops /arroba/ audienciazero.org
Lotação máxima de 10 participantes
Sábado 13 de Março de 2010
AltLab em Cacilhas
14h00m
5€

Let’s each of us pick up a random stepper and try to find out what kind of stepper it is, draw a simple diagram.
Then pick up the soldering iron (have noooooo fear :)) and assemble a circuit to control that motor from an Arduino or any other microcontroller-based board.
All materials are supplied to the participants and everyone gets to keep them; you’re just required to bring your own soldering iron and multimeter (or wait a random amount of time to borrow someone else’s).

The number of participations is limited, therefore, if you tell us you’ll come, we’ll REEEALLY be waiting for you ;)

For registration and information requests: workshops /at/ audienciazero.org
Maximum of 10 participants
Saturday, March 13 2010
AltLab @ Cacilhas
14h00m
5€

Hey.

Four drum pads ready to go.

All made of old material found in the Alt/Lab installations, and a very special big thankxxx for Mónica who brought the casings (we are going back to that in a moment) for the drum pads.

So the idea was to make drum pads that we could hook up to a sound card(or whatever) and them make sweet music, this is a very nice combination between piezoelectric components and a few layers of some absorbent sound  material like rubber or cork foil (that’s what we use because there was nothing more) and a piece of aluminum foil for a greater drum area .

We use an old can (20l) of paint, four piezoelectric found in electronic junk like old modems and old telephones, wire for connecting the piezos, cork foil for insulation the drum pad area and Mónica supply the casings (square rubber cd´s stands), and glue for putting everything nice and tight .

First we cut a piece of the can (circular about 10cm radius)and we glued the piezo into it, then we drilled one hole into the rubber casing for the wires to came out, them we cut two square cork foil parts (the first in the bottom of the casing and the other for the top) a bit of glue and that’s it drum pads ready to rock.

Now we got some audio coming out of the pads but thats just boring because its always the same and we want to go further like transforming audio into midi messages, and we found the right tool for it, its called  “KTDrumTrigger” and he transforms the audio signal into midi notes, we can use this midi notes inside a sequencer program to control any kind of instrument (either VSTI or some other stuff), in our case we use the drum pads to control “Battery” and thats it instant fun.

There are some other links and some other ideas for drum pads. This “one“uses ardunio as a source for the imput signal.

This is a fully functional version of the Arduino. We eliminated the PCB and use paper and cardboard as support and the result is.. the PAPERduino :D

This is the the first version of the layout design, next we will try more designs, and other materials. You just need to print the top and the bottom layouts, and glue them to any kind of support you want. We hope that you start making your own boards. If you do, please share your photos with us, we would love to see them ;)

There is no USB direct connection, so to program the paperduino you will need some kind of FTDI cable or adapter. One of this products will be fine:
FTDI cable from Adafruit Industries
FTDI adapter from Sparkfun

Download PDF

Components list:
1 x 7805 Voltage regulator
2 x LEDs (different colors)
2 x 560 Ohm resistors (between 220oHm and 1K)
1 x 10k Ohm resistor
2 x 100 uF capacitors
1x 16 MHz clock crystal
2 x 22 pF capacitors
1 x 0.01 uF capacitor
1 x button
1 x Atmel ATMega168
1 x socket 28 pin
Female and Male headers

Instructions:
Use a needle to puncture the holes for your components.

Don’t rush, place one component after another and do all the solder work carefully.

Follow the connection lines.

And this should be the final look of your paperduino connections.

My dear friend Kisty Boyle and I recently launched openMaterials – a collaborative research project dedicated to open investigation and experimentation with DIY production methods and uses of materials. In the spirit of the open source software and hardware movements, we hope to promote materials to be researched and developed in a public, collaborative manner. We see materials as an open resource, and wish to establish an open process for exploring and sharing knowledge, techniques and applications related to materials science.

I’ll be conducting most of my hands-on research right here at AltLab. We’d love for you to be involved if you are working in these areas or interested in learning more about smart materials.

A couple of years ago i found out on the “internets” that you don’t really need a protoboard or a circuit board to make your circuits come to life, the idea was to fold a piece of paper with the circuit design in it (component side and circuit diagram side) and then inserting a piece of cardboard in the middle.

The main idea was the eco, recycled “thingy” since circuit boards are not so eco friendly and take a bunch of time to get recycled by our mother earth, also the economic side (paper and cardboard are almost free), instead circuit boarding takes a long time and it’s hazardous for the environment.

So here’s what i do :

1- print the schematic you want (be sure to include on the sheet of paper both sides of the schematic (component side and schematic)

2-fold it (the idea is to fold where the component side meets the schematic)

3-cut a piece of cardboard and insert it in the middle of the sheet of paper

4-glue both sides on to the cardboard (now you must have a beautifull circuit board made of cardboard)

5-with a needle pierce (component side) all drilling holes into schematic side

6-insert the components (resistors, ic, capacitator etc..)

7-turn it back (schematic side) and start to solder (be sure to folow the traces on the paper), the best way to do this is to simply bend the leads of the components and solder them together, if you have a large area were the lead is not long enough just use a wire or something similar.

8-have fun